using UnityEngine;

namespace UnityEditor.Graphs.Material
{
	public class VectorProperty : ShaderProperty
	{
		[SerializeField] private Vector4 m_DefaultVector;

		public override object value
		{
			get { return m_DefaultVector; }
			set { m_DefaultVector = (Vector4) value; }
		}

		public Color defaultVector
		{
			get { return m_DefaultVector; }
			set { m_DefaultVector = value; }
		}

		public override void PropertyOnGUI(out bool nameChanged, out bool valuesChanged)
		{
			base.PropertyOnGUI(out nameChanged, out valuesChanged);
			EditorGUI.BeginChangeCheck();
			m_DefaultVector = EditorGUILayout.Vector4Field("Vector", m_DefaultVector);
			valuesChanged |= EditorGUI.EndChangeCheck();
		}

		public override PropertyType propertyType
		{
			get { return PropertyType.Vector4; }
		}

		public override void GeneratePropertyBlock(PropertyGenerator visitor, GenerationMode generationMode)
		{
			visitor.AddShaderProperty(new VectorPropertyChunk(name, m_PropertyDescription, m_DefaultVector, false));
		}

		public override void GeneratePropertyUsages(ShaderGenerator visitor, GenerationMode generationMode)
		{
			visitor.AddShaderChunk("float4 " + name + ";", true);
		}

		public override string GenerateDefaultValue()
		{
			return "half4 (" + m_DefaultVector.x + "," + m_DefaultVector.y + "," + m_DefaultVector.z + "," + m_DefaultVector.w + ")";
		}
	}
}